A GTPase gate for protein import into chloroplasts
... indicating close contact to the channel component. The newly assigned G5 is located on the longest loop as well, suggesting that this loop may transmit events at the GTP binding site to other translocon subunits. Conversely, the contacts at the Cys 215 loop provide a mechanism for other Toc componen ...
... indicating close contact to the channel component. The newly assigned G5 is located on the longest loop as well, suggesting that this loop may transmit events at the GTP binding site to other translocon subunits. Conversely, the contacts at the Cys 215 loop provide a mechanism for other Toc componen ...
Structure of prokaryotic cells
... release it into the cytosol. Mammalian cells use receptor-mediated endocytosis to take cholesterol into cells. Cholesterol in the blood is usually found in lipidprotein complexes called low-density lipoproteins (LDLs). LDLs bind to specific receptor proteins on the cell surface, thereby triggering ...
... release it into the cytosol. Mammalian cells use receptor-mediated endocytosis to take cholesterol into cells. Cholesterol in the blood is usually found in lipidprotein complexes called low-density lipoproteins (LDLs). LDLs bind to specific receptor proteins on the cell surface, thereby triggering ...
`synapse`.
... Impulse from the action potential opens ion channels for Ca++ The increased Ca++ concentration in the axon terminal initiates the release of the neurotransmitter (NT) NT is released from its vesicle and crosses the “gap” or synaptic cleft and attaches to a protein receptor on the dendrite ...
... Impulse from the action potential opens ion channels for Ca++ The increased Ca++ concentration in the axon terminal initiates the release of the neurotransmitter (NT) NT is released from its vesicle and crosses the “gap” or synaptic cleft and attaches to a protein receptor on the dendrite ...
Tonicity
... In animal cells, being in a hypertonic environment results in crenation, where the shape of the cell becomes distorted and wrinkled as water leaves the cell. Some organisms have evolved methods of circumventing Hypertonicity; for example, saltwater is hypertonic to the fish that live in it. Since th ...
... In animal cells, being in a hypertonic environment results in crenation, where the shape of the cell becomes distorted and wrinkled as water leaves the cell. Some organisms have evolved methods of circumventing Hypertonicity; for example, saltwater is hypertonic to the fish that live in it. Since th ...
see p. A4b - Viktor`s Notes for the Neurosurgery Resident
... NEUROTRANSMITTER – endogenous chemical agent that relays information from one neuron to another through synapse; released by presynaptic cell (upon excitation), crosses synapse to stimulate or inhibit* postsynaptic cell by binding to receptor. *final result (hyperpolarization or depolarization) is d ...
... NEUROTRANSMITTER – endogenous chemical agent that relays information from one neuron to another through synapse; released by presynaptic cell (upon excitation), crosses synapse to stimulate or inhibit* postsynaptic cell by binding to receptor. *final result (hyperpolarization or depolarization) is d ...
Cell Transport Honors Biology Mr. Lee Room 320
... different situations. These situations are known as: ...
... different situations. These situations are known as: ...
student Presentation
... Golgi complex is the secretory organ of the cell . It modifies , sorts and packs materials synthesized in the cell ( enzymes mucous secretion , proteins ,lipids ,pigments etc.) .&dispatches them to various targets inside the cell or outside the cell. iii. It produce vacuoles & secretory vesicles. iv ...
... Golgi complex is the secretory organ of the cell . It modifies , sorts and packs materials synthesized in the cell ( enzymes mucous secretion , proteins ,lipids ,pigments etc.) .&dispatches them to various targets inside the cell or outside the cell. iii. It produce vacuoles & secretory vesicles. iv ...
Key idea 1 notes
... It only lets certain substances in or out of the cell Some small molecules can pass through the bilayer Others use proteins to cross the membrane ...
... It only lets certain substances in or out of the cell Some small molecules can pass through the bilayer Others use proteins to cross the membrane ...
Sp100 is important for the stimulatory effect of
... To investigate the impact of Sp100 on HIPK2-induced p53 activity, human U2OS cells were transfected with various combinations of expression vectors encoding Sp100 and the wild-type and kinase inactive (K221A) point mutant of HIPK2, along with a pG13-luc luciferase reporter gene controlled by multime ...
... To investigate the impact of Sp100 on HIPK2-induced p53 activity, human U2OS cells were transfected with various combinations of expression vectors encoding Sp100 and the wild-type and kinase inactive (K221A) point mutant of HIPK2, along with a pG13-luc luciferase reporter gene controlled by multime ...
Physiology Introduction: Cell and Body Fluids
... Gas exchange occurs by diffusion. The color dots, which represent oxygen & carbon dioxide molecules, indicate relative concentrations inside the cell & in the extracellular environment. Gas exchange between the intracellular & extracellular compartments thus occur by diffusion. ...
... Gas exchange occurs by diffusion. The color dots, which represent oxygen & carbon dioxide molecules, indicate relative concentrations inside the cell & in the extracellular environment. Gas exchange between the intracellular & extracellular compartments thus occur by diffusion. ...
Advanced Biology Specimen Paper 2 2011-13
... In 1988, a group of scientists trying to isolate an antigen from the cell surface membrane of red blood cells discovered another protein present in considerable amounts. They were able to determine the full DNA sequence for this protein and, from this information, were able to predict the exact sequ ...
... In 1988, a group of scientists trying to isolate an antigen from the cell surface membrane of red blood cells discovered another protein present in considerable amounts. They were able to determine the full DNA sequence for this protein and, from this information, were able to predict the exact sequ ...
The Cell Outline
... Viruses are made of a protein coat called a ____________________ that contains their DNA and an _______________________ that surrounds capsid to help the virus enter cells ...
... Viruses are made of a protein coat called a ____________________ that contains their DNA and an _______________________ that surrounds capsid to help the virus enter cells ...
Membrane Proteins
... FIGURE 10.11 The selectivity filter of KcsA at high potassium concentration. Only two subunits are drawn. A number of K+ ions (lilac) are filling the filter, but only every second position in the filter can be occupied by one ion at a time. Carbonyl oxygens are facing the channel and restricting t ...
... FIGURE 10.11 The selectivity filter of KcsA at high potassium concentration. Only two subunits are drawn. A number of K+ ions (lilac) are filling the filter, but only every second position in the filter can be occupied by one ion at a time. Carbonyl oxygens are facing the channel and restricting t ...
Cytoskeletal Architecture and Cell Morphogenesis
... establishment of functional membrane domains devoted to polarized cell growth or cell division, and how it is remodeled at mitotic entry for the assembly of the mitotic spindle and contractile ring, two complex molecular machines promoting chromosome segregation and cytokinesis. Most our studies are ...
... establishment of functional membrane domains devoted to polarized cell growth or cell division, and how it is remodeled at mitotic entry for the assembly of the mitotic spindle and contractile ring, two complex molecular machines promoting chromosome segregation and cytokinesis. Most our studies are ...
Chapter 12. Regulation of the Cell Cycle
... When not enough growth factor left to trigger division in any one cell, division stops ...
... When not enough growth factor left to trigger division in any one cell, division stops ...
1900 Animal Cell Model GUD
... ells are the building blocks of life. All living things are made up of cells. The animal cell is a typical eukaryotic cell, and while there are some differences between functions of specific cells, they all contain the same basic organelles. The animal cell type is found not just in animals, but in ...
... ells are the building blocks of life. All living things are made up of cells. The animal cell is a typical eukaryotic cell, and while there are some differences between functions of specific cells, they all contain the same basic organelles. The animal cell type is found not just in animals, but in ...
Escherichia coli
... Vital for cellular functions • Difficult to study Due to hydrophobic and amphiphilic nature Less than 1% of high resolution 3D structures known ...
... Vital for cellular functions • Difficult to study Due to hydrophobic and amphiphilic nature Less than 1% of high resolution 3D structures known ...
Glycogen Slides from Class
... Liver cells make glucose! Muscle cells do not. Presence of high conc of glc in cell indicates that blood glucose is adequate= no need to make more glucose. ...
... Liver cells make glucose! Muscle cells do not. Presence of high conc of glc in cell indicates that blood glucose is adequate= no need to make more glucose. ...
Hedgehog Learning. Copying permitted for purchasing campus only
... Bacteria and viruses reproduce using genetic coding found in nucleic acids. ...
... Bacteria and viruses reproduce using genetic coding found in nucleic acids. ...
Student Handout
... holds all the organelles of the cell. The large nucleus of a cell is similar to your brain because it functions as the cell’s control center. The nucleus contains genetic material that is used as instructions for directing cell functions. Endoplasmic reticulum (ER) surrounds the nucleus and helps to ...
... holds all the organelles of the cell. The large nucleus of a cell is similar to your brain because it functions as the cell’s control center. The nucleus contains genetic material that is used as instructions for directing cell functions. Endoplasmic reticulum (ER) surrounds the nucleus and helps to ...
Chapter 7 practice quiz
... 1. Based on the model of sucrose uptake in this figure, which of the following experimental treatments would increase the rate of sucrose transport into the cell? a. decreasing extracellular sucrose concentration b. decreasing extracellular pH c. decreasing cytoplasmic pH d. adding an inhibitor tha ...
... 1. Based on the model of sucrose uptake in this figure, which of the following experimental treatments would increase the rate of sucrose transport into the cell? a. decreasing extracellular sucrose concentration b. decreasing extracellular pH c. decreasing cytoplasmic pH d. adding an inhibitor tha ...
AP Biology Ch. 6 Cells
... Mitochondria and Chloroplasts change energy from one form to another. Mitochondria are the sites for cellular respiration; Chloroplasts are the sites for photosynthesis. ...
... Mitochondria and Chloroplasts change energy from one form to another. Mitochondria are the sites for cellular respiration; Chloroplasts are the sites for photosynthesis. ...
Signal transduction
Signal transduction occurs when an extracellular signaling molecule activates a specific receptor located on the cell surface or inside the cell. In turn, this receptor triggers a biochemical chain of events inside the cell, creating a response. Depending on the cell, the response alters the cell's metabolism, shape, gene expression, or ability to divide. The signal can be amplified at any step. Thus, one signaling molecule can cause many responses.